Global stocks slid and oil prices rose on Tuesday as fighting between Israel and Iran entered its fifth day, sowing fears of a broader regional conflict, while investors took in stride the Bank of Japan's decision to slow the pace of its bond tapering.

Top on the agenda this week is a host of central bank monetary policy decisions, with the spotlight on the US Federal Reserve.

Relative calm returned to global markets, with stocks climbing and oil sinking alongside gold as fears subsided that Israel’s war against Iran would escalate into a wider conflict. News reports that Tehran wants to restart talks over nuclear programs also fueled risk-on sentiment.